Only common sense? Now may not be the best time to refer to Thomas Paine’s advice to Americans that they should seek independence from Britain, but a keen understanding of what common sense means is important for an expert.
It’s trite to say that experts are there to assist the court on matters within their expertise but it tends to irritate judges if experts provide opinions that tell them what they already know. If you’re being asked to give opinions about matters that are really common sense it’s important to stop and consider if this is really necessary.
In some recent cases a good deal of time, and client’s money, seems to have been spent on expert evidence that really wasn’t needed. As Meade J observed in a patent case involving Motorola and Ericsson, “The experts gave their evidence very fairly and it was not submitted to the contrary. However, with a few exceptions, and this is not the fault of the experts themselves, I found the expert evidence unhelpful and a waste of time. For example, questions were asked to establish that companies in this field like certainty if they can get it, and that patent injunctions are bad for handset manufacturers. I did not need experts to tell me this. “
Similarly in an inheritance tax hearing the Tribunal considered that expert advice on the running of a property business did not assist them, “this is not an area where particular specialist expertise and experience is required to understand the evidence given by those involved in the business.”
Experts and lawyers should take care to avoid wasting time in this way and experts in particular should remember that an irritated judge is unlikely to be of benefit to them or their client.